<script src="https://unpkg.com/vue"></script>

<div id="app-4">
  <ol>
    <li v-for="todo in todos">
      {{ todo.text }}
    </li>
  </ol>
</div>

<script>
  var app4 = new Vue({
    el: '#app-4',
    data: {
      todos: [{
          text: '学习 JavaScript'
        },
        {
          text: '学习 Vue'
        },
        {
          text: '整个牛项目'
        }
      ]
    }
  });

</script>
